Analysis Overview
SHA256
dad7e8970d66932f9ec8a877164854ef92e4cfa821faa3a092aa374680bd10a0
Threat Level: Known bad
The file 63ef0345e13c18cb0678e3f02a6d73ec_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Modifies WinLogon for persistence
Executes dropped EXE
Checks BIOS information in registry
Checks computer location settings
Loads dropped DLL
Adds Run key to start application
Program crash
Enumerates physical storage devices
Unsigned PE
Checks processor information in registry
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates system info in registry
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-22 16:32
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-22 16:32
Reported
2024-07-22 16:35
Platform
win10v2004-20240709-en
Max time kernel
150s
Max time network
151s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\63ef0345e13c18cb0678e3f02a6d73ec_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" | C:\Windows\SysWOW64\notepad.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\test .scr.exe |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\63ef0345e13c18cb0678e3f02a6d73ec_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\63ef0345e13c18cb0678e3f02a6d73ec_JaffaCakes118.exe"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\matrix.bat" "
C:\Users\Admin\AppData\Local\Temp\test .scr.exe
"C:\Users\Admin\AppData\Local\Temp\test .scr.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3852 -ip 3852
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3852 -s 860
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 89.65.42.20.in-addr.arpa | udp |
Files
memory/3944-0-0x00007FFA21765000-0x00007FFA21766000-memory.dmp
memory/3944-1-0x000000001BB10000-0x000000001BBB6000-memory.dmp
memory/3944-2-0x00007FFA214B0000-0x00007FFA21E51000-memory.dmp
memory/3944-4-0x00007FFA214B0000-0x00007FFA21E51000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\test .scr.exe
| MD5 | 27826851be859cf68fd872f52bf0fda0 |
| SHA1 | ede13d2ada6448f7d7fba2eb7ae30a4ed2ba6adb |
| SHA256 | 2cec27c92a4eadd7bb087737718af0cb23c2864065caf7ef5e82c95be32b43b8 |
| SHA512 | ae3645ea4e03085f670f2228bf1d93d1b1d6bba146c272ef583698b3227423b6dc966e7f613bcc1b135ce16012f20ddf00061fdf487570dc371246871efbe1af |
C:\Users\Admin\AppData\Local\Temp\matrix.bat
| MD5 | 82c80b9371a77dea5dae7be0465e12ec |
| SHA1 | 352c293197f06d61af414990e4e12e716779bb28 |
| SHA256 | 2d0992c371d04241a42091bc513cddfcc0a50c65d03cb4f1bb0d5a255b908801 |
| SHA512 | bd226a353b156a684d402aab391c7b2a50a231349a9a6750086e3a065d70a5de5dfe908b53e6ef3b79c39390a9fe681efff167837a563053eae173b772892c73 |
memory/3944-17-0x00007FFA214B0000-0x00007FFA21E51000-memory.dmp
memory/3852-18-0x0000000002200000-0x0000000002201000-memory.dmp
memory/1752-19-0x0000000000AF0000-0x0000000000AF1000-memory.dmp
memory/3852-21-0x0000000013140000-0x00000000131F6000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-22 16:32
Reported
2024-07-22 16:35
Platform
win7-20240705-en
Max time kernel
150s
Max time network
119s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" | C:\Windows\SysWOW64\notepad.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\test .scr.exe |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Users\Admin\AppData\Local\Temp\test .scr.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\63ef0345e13c18cb0678e3f02a6d73ec_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\63ef0345e13c18cb0678e3f02a6d73ec_JaffaCakes118.exe"
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\matrix.bat" "
C:\Users\Admin\AppData\Local\Temp\test .scr.exe
"C:\Users\Admin\AppData\Local\Temp\test .scr.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2216 -s 452
Network
Files
memory/2548-0-0x000007FEF619E000-0x000007FEF619F000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\matrix.bat
| MD5 | 82c80b9371a77dea5dae7be0465e12ec |
| SHA1 | 352c293197f06d61af414990e4e12e716779bb28 |
| SHA256 | 2d0992c371d04241a42091bc513cddfcc0a50c65d03cb4f1bb0d5a255b908801 |
| SHA512 | bd226a353b156a684d402aab391c7b2a50a231349a9a6750086e3a065d70a5de5dfe908b53e6ef3b79c39390a9fe681efff167837a563053eae173b772892c73 |
C:\Users\Admin\AppData\Local\Temp\test .scr.exe
| MD5 | 27826851be859cf68fd872f52bf0fda0 |
| SHA1 | ede13d2ada6448f7d7fba2eb7ae30a4ed2ba6adb |
| SHA256 | 2cec27c92a4eadd7bb087737718af0cb23c2864065caf7ef5e82c95be32b43b8 |
| SHA512 | ae3645ea4e03085f670f2228bf1d93d1b1d6bba146c272ef583698b3227423b6dc966e7f613bcc1b135ce16012f20ddf00061fdf487570dc371246871efbe1af |
memory/2548-17-0x000007FEF5EE0000-0x000007FEF687D000-memory.dmp
memory/2216-18-0x0000000000270000-0x0000000000271000-memory.dmp
memory/2464-46-0x0000000000020000-0x0000000000021000-memory.dmp
memory/2464-19-0x0000000000080000-0x0000000000081000-memory.dmp
memory/2216-51-0x0000000013140000-0x00000000131F6000-memory.dmp